In this clip from the video documenting a demon attack, as well as my subsequent defensive maneuver, which involved a can of hairspray and a lighter, you can see the smoky orb of a demon ascend from the floor, and up to the ceiling, in an attempt to enter the room and then find safe grounds, in the hopes of springing an attack later.
Also see it at https://vimeo.com/38953281
Also see it at https://vimeo.com/38953281